Method and device for stripping metal foil of shield wire
a shield wire and metal foil technology, applied in the field of methods and devices for stripping metal foil of shielded electric wires, can solve the problems of difficult peeling off of metal foil with a reduction in diameter, and achieve the effects of complicated operation, limited stripping length, and complicated structur
Pending Publication Date: 2022-06-09
YAZAKI CORP
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- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Benefits of technology
The invention is a method and device for stripping metal foil off electric wires. The existing method had issues with keeping the metal foil constant in size and could damage the wire core or require a complex mechanism. The new method uses air blowing to expand the metal foil without damaging the wire core, making the stripping process easier and reliable. The device for achieving this includes an air blowing unit and a peeling jig for inserting into the electric wire hole.
Problems solved by technology
However, in the shielded electric wire such as an electric wire used in Ethernet (registered trademark), it is very difficult to peel off the metal foil with a reduction in diameter.
Method used
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Embodiment Construction
[0023]Specific embodiments according to the present invention will be described below with reference to the accompanying drawings.
[0024]FIG. 1A to FIG. 3 are cross-sectional views for illustrating steps of a method for stripping a metal foil of a shielded electric wire according to an embodiment of the present invention. FIG. 4 is a perspective view showing a structure of the shielded electric wire as an example of an operation target.
[0025]As shown in FIG. 4, a shielded electric wire W to be operated has a structure including a wire core Wa formed of a wire made of soft copper, a shielding metal foil (aluminum foil or copper foil) Wb surrounding an outer periphery of the wire core Wa, a shielding braid Wc surrounding an outer periphery of the metal foil Wb, and a sheath Wd surrounding an outer periphery of the braid Wc. The metal foil Wb is spirally wound around the outer periphery of the wire core Wa while partially overlapping the adjacent component. In the present embodiment, th...
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Positioning of a shield electric wire is performed by an insertion jig in front of a peeling jig, and a portion at a distal end of the shield electric wire where a metal foil is exposed is inserted into an electric wire insertion hole of a peeling jig through the center hole of an insertion jig. Air is blown from an opening on an other-end-surface side of the peeling jig toward the distal end of the shielded electric wire, and the metal foil is expanded while being separated from a wire core. A cut is formed from a side of a metal foil expanded by blowing air in a predetermined gap between a one-end-surface of the peeling jig and an end surface of the insertion jig, and the metal foil is cut from the cut as a starting point.
Description
CROSS REFERENCE TO RELATED APPLICATIONS[0001]This application is a continuation of PCT application No. PCT / JP2020 / 035864, which was filed on Sep. 23, 2020 based on Japanese patent application 2019-175975 filed on Sep. 26, 2019, whose contents are incorporated herein by reference. Also, all the references cited herein are incorporated as a whole.BACKGROUND OF THE INVENTIONTechnical Field[0002]The present invention relates to a method and a device for stripping a metal foil of a shielded electric wire.Background Art[0003]Among types of shielded electric wires, there is a structure in which a metal foil such as an aluminum foil is wound around an outer periphery of a wire core (for example, a “wire made of soft copper”) as a shielding material and an outer periphery of the metal foil is covered with a sheath. There is also a structure in which a braid is inserted between the metal foil and the sheath. When the type of shielded electric wire is subjected to terminal processing (for exam...
Claims
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Login to View More IPC IPC(8): H02G1/12B26D3/16
CPCH02G1/1265H01B11/00B26D3/169B26D3/00H02G1/1253Y02W30/82
Inventor MABUCHI, MIYOSHI
Owner YAZAKI CORP